activation … 5-60 active path … 5-50 active paths … 5-54 bandwidth loss … 5-51 blocked traffic … 5-51

boundary port, region … 5-53,5-54 boundary port, VLAN membership … 5-51 BPDU … 5-51,5-57,5-61,5-62,5-64 BPDU requirement … 5-53

BPDU, function … 5-53 bridge … 5-53

bridge, designated for region … 5-53 caution … 5-46,5-49

CIST … 5-47,5-52,5-54

CIST per-port hello time … 5-54 CIST root … 5-64

common and internal spanning tree See CIST.

common spanning tree See CST.

compatibility … 5-55 compatibility mode … 5-62 configuration … 5-59,5-72 configuration identifier … 5-53 configuration steps … 5-57 configuration, exchanging … 5-72 configuration, MST instance … 5-66 configuration, MSTI per-port5-69 configuration, port … 5-63 convergence time, minimize … 5-60 CST … 5-47,5-51,5-53

CST and legacy devices … 5-51 CST, view status … 5-74,5-75 default configuration … 5-49 designated bridge … 5-51,5-53 designated port … 5-51 disabling MSTP … 5-72

display statistics and configuration … 5-74 dynamic VLANs, disallowed … 5-48 edge port … 5-63

enabling a region … 5-72 enabling MSTP … 5-72

example of multiple topologies … 5-50 fault tolerance … 5-46

force protocol version … 5-55force-version5-64 forwarding paths … 5-55 forwarding state … 5-63

frame duplication and misordering … 5-55 general operation … 5-5,5-46

GVRP … 5-48,5-55

hello-time, CIST root, propagated … 5-54,5-62hello-time, override … 5-54

hello-time, propagated … 5-54hop-count decremented … 5-61 instance … 5-5,5-54,5-58 instance, forwarding topology … 5-54 instance, IST … 5-48

instance, type … 5-48internal spanning tree

See IST.

interoperating with 802.1D and 802.1w … 5-53 IST … 5-48

IST instance … 5-48,5-66 IST root … 5-48,5-50,5-53 IST, defined … 5-53

IST, dynamic VLAN … 5-55 IST, root switch … 5-53

IST, switch membership … 5-53 IST, VLAN membership … 5-48 legacy devices and the CST … 5-51 legacy STP and RSTP … 5-51 mesh environment … 5-46,5-55 MIB … 5-81

MST region See region.

MSTI … 5-48,5-54 MSTI root … 5-50 MSTI, view status … 5-76 MSTP … 5-49

MSTP operation … 5-49

MSTP, view global configuration … 5-77multiple spanning tree instance

See MSTI

override hello-time5-54

path cost, effect on 802.1D … 5-55 pending configuration … 5-80 pending option … 5-49,5-61,5-72,5-73per-VLAN STP … 5-46

planning … 5-56

port connectivity … 5-63 port states … 5-50,5-55 priority resolution … 5-67 priority, device … 5-58,5-68 priority, IST port … 5-71 priority, MSTI port … 5-70

6 – Index